title: Superior lithium electroactive mesoporous Si@carbon core-shell nanowires for lithium battery anode material.
abstract: Mesoporous Si@carbon core-shell nanowires with a diameter of approximately 6.5 nm were prepared for a lithium battery anode material using a SBA-15 template. As-synthesized nanowires demonstrated excellent first charge capacity of 3163 mA h/g with a Coulombic efficiency of 86% at a rate of 0.2 C (600 mA/g) between 1.5 and 0 V in coin-type half-cells. Moreover, the capacity retention after 80 cycles was 87% and the rate capability at 2 C (6000 mA/g) was 78% the capacity at 0.2 C.
authors.affiliation: Department of Applied Chemistry, Hanyang University, Ansan, 426-791 Korea.
authors.forename: Hyesun
authors.initials: H
authors.lastname: Kim
authors.forename: Jaephil
authors.initials: J
authors.lastname: Cho